rework the dblbuf framebuffer module's blutter heavily, based on work

by loren merritt. roughly 3-4 times as fast as the old code with
slightly increased memory usage. still only supports 8bpp and font
width of 8, for now, but the new design is more easily extended to
16bpp and 32bpp than the old one.

1 files changed, 2 insertions, 2 deletions

diff --git a/dblbuf.h b/dblbuf.h
index aa2dc47..cb57696 100644
--- a/dblbuf.h
+++ b/dblbuf.h
@@ -4,7 +4,7 @@
 struct slice
 {
 	int y;
-	unsigned char *colors;
+	unsigned long *colors;
 	unsigned char *bitmap;
 };
 
@@ -23,7 +23,7 @@ struct dblbuf
 };
 
 #define SLICE_BUF_SIZE(w, h, cs, ch) \
-	( (h)*(sizeof(struct slice) + (w)*(1 + (cs)*(ch))) )
+	( (h)*(sizeof(struct slice) + (w)*(2*sizeof(long) + (cs)*(ch))) )
 
 struct slice *dblbuf_setup_buf(int, int, int, int, unsigned char *);